Why is there no signal when connecting raspberry pi via hdmi to tv?

Question

HDMI

Good day.
There is a raspberry pi 3 model b, a half meter hdmi v1.4 cable, an 8gb flash drive (new, speed class 10), a 2500mA power adapter, an LG 50LB650V TV.
As usual, I rolled the RASPBIAN image onto a USB flash drive, I plug it in and ... there is no signal.
If you write hdmi_force_hotplug=1 and config_hdmi_boost=4 in the config.txt file, then by simplink the telly determines that rapsbury is connected, but it still does not display the picture.
My monitor does not have an hdmi output, but through some ancient dvi adapter it displays a picture, which means the raspberry is working.
The red LED is on, the green one blinks randomly, not symbolizing any errors.
In general, I can’t put my mind to what she doesn’t like.

Answer 1

Everything turned out to be more prosaic. The second raspberry came, connected it to the TV set and an image appeared without any configs. And the old current through the DVI-adapter works ...
At my leisure I will think about why this is so.

Answer 2

http://www.armlinux.ru/description-of-c-file-parameters...
There is a detailed description of the config.txt configuration options,
look, it should help.

Answer 3

- I have such garbage. karoch works every other time .... I connect a raspberry via an adapter to DVI